Ribbon tabs are used to control the display of ribbon panels on the ribbon.
Ribbon tabs do not contain any commands or controls; instead, they manage the display of ribbon panels on the ribbon. Once a ribbon tab is created, you can then add references to the ribbon panels you want to display when a ribbon tab is current. After a reference to a ribbon panel is added to a ribbon tab, you can control the ribbon panel's initial display order on the ribbon tab when the ribbon tab is added to a workspace.
A ribbon tab must be added to a workspace before it can be displayed on the ribbon. After you add a ribbon tab to a workspace, you can control the default display state for the ribbon tab and the ribbon panels associated with it. You can also associate a tool palette group with the ribbon tab, and the collapse behavior, resize order, and orientation of a ribbon panel.
The following table describes the properties for the Home - 2D ribbon tab as they appear in the Properties pane.
When you load a partial CUIx file with ribbon tabs, you can use the Workspace Behavior property to control how the ribbon tabs are displayed in all existing workspaces. The Workspace Behavior property can be set to the following options:
The Plug-ins ribbon tab found in the acad.cuix or acadlt.cuix files, employ the concept of merging multiple ribbon tabs from all loaded CUIx files into a single ribbon tab. If you create custom applications that utilize the ribbon, you can merge your ribbon tab with the Plug-ins tab.
If you want to merge your ribbon tab with the Plug-ins tab, set the properties of your ribbon tab to:
Ribbon contextual tab states control the display of ribbon tabs on the ribbon when certain commands are active or when an object is selected.